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Fencer Intel
medium 4.3

CVE-2015-2730 json

Mozilla Network Security Services (NSS) before 3.19.1, as used in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before…

published 2015-07-06 11 y ago modified 2026-06-17 4 mo ago also EUVD-2015-2820

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.6%
EPSS 3.6% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known

Summary

Mozilla Network Security Services (NSS) before 3.19.1, as used in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, and other products, does not properly perform Elliptical Curve Cryptography (ECC) multiplications, which makes it easier for remote attackers to spoof ECDSA signatures via unspecified vectors.

Patch / fix

  • nss Debian 14, Debian 13, Debian 12 2:3.19.1-1

debian advisories DEBIAN-CVE-2015-2730

  • nss Ubuntu 14.04 LTS 2:3.19.2-0ubuntu0.14.04.1
  • firefox Ubuntu 14.04 LTS 39.0+build5-0ubuntu0.14.04.1
  • thunderbird Ubuntu 14.04 LTS 1:31.8.0+build1-0ubuntu0.14.04.1

ubuntu advisories UBUNTU-CVE-2015-2730

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • nss RHEL 5 3.19.1-1.el5_11
  • nss-tools RHEL 5 3.19.1-1.el5_11
  • nss-softokn RHEL 6 3.14.3-23.el6_7
  • nss-softokn RHEL 7 3.16.2.3-13.el7_1
  • nss-softokn RHEL 7 3.16.2.3-13.ael7b_1
  • nss-softokn-freebl RHEL 6 3.14.3-23.el6_7
  • nss-softokn-freebl RHEL 7 3.16.2.3-13.el7_1
  • nss-softokn-freebl RHEL 7 3.16.2.3-13.ael7b_1

red hat advisories RHSA-2015:1664RHSA-2015:1699

  • mozilla-nss SLES 11 SP2-LTSS, SLES 11 SP1-TERADATA, SLES 11 SP1-LTSS 3.19.2.0-0.7.1
  • firefox-gcc47 SLES 11 SP2-LTSS, SLES 11 SP1-TERADATA, SLES 11 SP1-LTSS 4.7.2_20130108-0.37.2
  • MozillaFirefox SLES 11 SP2-LTSS, SLES 11 SP1-TERADATA, SLES 11 SP1-LTSS 38.2.0esr-10.1
  • MozillaFirefox-branding-SLED SLES 11 SP2-LTSS, SLES 11 SP1-TERADATA, SLES 11 SP1-LTSS 31.0-0.5.7.11
  • mozilla-nss SLES 11 SP4, SLES 11 SP3-TERADATA, SLES 11 SP3 +6 more 3.19.2_CKBI_1.98-0.10.1
  • mozilla-nspr SLES 11 SP4, SLES 11 SP3-TERADATA, SLES 11 SP3 +6 more 4.10.8-0.5.1
  • MozillaFirefox SLES 11 SP4, SLES 11 SP3-TERADATA, SLES 11 SP3 +6 more 31.8.0esr-0.10.1
  • mozilla-nss SLES for SAP 12, SLES 12, SLED 12 +1 more 3.19.2_CKBI_1.98-21.1

suse advisories SUSE-SU-2015:1449-1SUSE-SU-2015:1268-1SUSE-SU-2015:1268-2SUSE-SU-2015:1269-1

  • firefox-esr openSUSE Tumbleweed 128.5.1-1.1
  • MozillaFirefox openSUSE Tumbleweed 50.1.0-1.1
  • MozillaThunderbird openSUSE Tumbleweed 45.5.1-1.1

opensuse advisories openSUSE-SU-2024:14572-1openSUSE-SU-2024:10071-1openSUSE-SU-2024:10230-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-2730 updated cvss 4.3

NSS: ECDSA signature validation fails to handle some signatures correctly (MFSA 2015-64)

  • Red Hat Enterprise Linux (v. 5 server) nss 3.19.1-1.el5_11, nss-tools 3.19.1-1.el5_11
    fixed: vendor fix RHSA-2015:1664
  • Red Hat Enterprise Linux Client (v. 7) nss-softokn 3.16.2.3-13.el7_1, nss-softokn-freebl 3.16.2.3-13.el7_1 Red Hat Enterprise Linux Client Optional (v. 7) nss-softokn 3.16.2.3-13.el7_1, nss-softokn-freebl 3.16.2.3-13.el7_1 Red Hat Enterprise Linux ComputeNode (v. 7) nss-softokn 3.16.2.3-13.el7_1, nss-softokn-freebl 3.16.2.3-13.el7_1 Red Hat Enterprise Linux ComputeNode Optional (v. 7) nss-softokn 3.16.2.3-13.el7_1, nss-softokn-freebl 3.16.2.3-13.el7_1
    fixed: vendor fix RHSA-2015:1699
  • Red Hat Enterprise Linux Desktop (v. 5 client) nss 3.19.1-1.el5_11, nss-tools 3.19.1-1.el5_11
    fixed: vendor fix RHSA-2015:1664
  • Red Hat Enterprise Linux Desktop (v. 6) nss-softokn 3.14.3-23.el6_7, nss-softokn-freebl 3.14.3-23.el6_7 Red Hat Enterprise Linux Desktop Optional (v. 6) nss-softokn 3.14.3-23.el6_7, nss-softokn-freebl 3.14.3-23.el6_7
    fixed: vendor fix RHSA-2015:1699
  • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) nss 3.19.1-1.el5_11, nss-tools 3.19.1-1.el5_11
    fixed: vendor fix RHSA-2015:1664
  • Red Hat Enterprise Linux HPC Node (v. 6) nss-softokn 3.14.3-23.el6_7, nss-softokn-freebl 3.14.3-23.el6_7 Red Hat Enterprise Linux HPC Node Optional (v. 6) nss-softokn 3.14.3-23.el6_7, nss-softokn-freebl 3.14.3-23.el6_7 Red Hat Enterprise Linux Server (v. 6) nss-softokn 3.14.3-23.el6_7, nss-softokn-freebl 3.14.3-23.el6_7 Red Hat Enterprise Linux Server (v. 7) nss-softokn 3.16.2.3-13.el7_1, nss-softokn 3.16.2.3-13.ael7b_1, nss-softokn-freebl 3.16.2.3-13.el7_1, nss-softokn-freebl 3.16.2.3-13.ael7b_1 Red Hat Enterprise Linux Workstation (v. 6) nss-softokn 3.14.3-23.el6_7, nss-softokn-freebl 3.14.3-23.el6_7 Red Hat Enterprise Linux Workstation (v. 7) nss-softokn 3.16.2.3-13.el7_1, nss-softokn-freebl 3.16.2.3-13.el7_1
    fixed: vendor fix RHSA-2015:1699

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.57% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.